Alert archive / New York / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 11, NWS Buffalo, NY

May 29, 1998Wyoming County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 29, 1998, 11:59 AM EDT for Wyoming County, New York. It was in force for 46 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 29, 1998, 11:59 AM EDT (15:59 UTC)
Expired: May 29, 1998, 12:45 PM EDT
In force: 46 min
Issued by: NWS Buffalo, NY
Area: Whole counties

County Wyoming County, NY

The radar

The Buffalo radar (KBUF), 50 km from the middle of the area, began a volume at 16:02 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
May 29, 12:05 PM EDT	Hail 1	Attica, NY
May 29, 12:20 PM EDT	Thunderstorm Wind	Warsaw, NY

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 4.0 hours before the alert went out and 299 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 182 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 1172 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: -22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

404 
WUUS1 KBUF 291601 RRA
SVRBUF
NYC121-291645-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1159 AM EDT FRI MAY 29 1998

THE NATIONAL WEATHER SERVICE IN BUFFALO NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WYOMING COUNTY IN WESTERN NEW YORK

* UNTIL 1245 PM EDT

* AT 11:55 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED A LINE OF SEVERE THUNDERSTORMS FROM ATTICA TO JAVA
  CENTER
  ...MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  PAVILION BY 12:20 PM EDT
  WARSAW BY 12:25 PM EDT

BE ON THE ALERT FOR THUNDERSTORMS ACCOMPANIED BY DAMAGING
WINDS...FREQUENT LIGHTNING AND HAIL. LOCALLY HEAVY RAINFALL
MAY ALSO PRODUCE DRAINAGE FLOODING.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 29, 11:51 AM EDT, 8 minutes before

NYZ001>008-010>014-019>021-292300-

SEVERE WEATHER OUTLOOK CORRECTED
NATIONAL WEATHER SERVICE BUFFALO NY
1151 AM EDT FRI MAY 29 1998

A COLD FRONT WILL MOVE SOUTH ACROSS NEW YORK STATE THIS AFTERNOON AND
PRODUCE SHOWERS AND THUNDERSTORMS AS IT ENCOUNTERS THE WARM HUMID AIR
OVER WESTERN AND CENTRAL NEW YORK.

AS THE TEMPERATURES WARM INTO THE 80S THIS AFTERNOON...SOME OF THE
THUNDERSTORMS MAY BECOME SEVERE ESPECIALLY OVER THE GENESEE VALLEY
...THE FINGER LAKES AND SOUTHERN TIER.

BE ALERT FOR THE POSSIBILITY OF SEVERE WEATHER. IF THE THREAT BECOMES
MORE CERTAIN A SEVERE THUNDERSTORM WATCH WOULD BE ISSUED.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO/TV/CABLE OUTLETS FOR
THE LAfTEST INFORMATION AND POSSIBLE WATCHES OR WARNINGS.

FOR ADDITIONAL INFORMATION CHECK OUT OUR WEB SITE AT
WWW.WBUF.NOAA.GOV.

TJP

The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 29, 11:00 AM EDT	Severe Thunderstorm Warning	BUF	Niagara	45 min
May 29, 12:13 PM EDT	Severe Thunderstorm Warning	BUF	Livingston	62 min
May 29, 12:46 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego	64 min
May 29, 1:00 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	45 min

Nearby

Severe Thunderstorm Warnings in New York, 1998 Every severe thunderstorm warning in 1998

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.